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linux/include/uapi
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Damien Le Moal 01584c1e23 scsi: block: Improve ioprio value validity checks 
The introduction of the macro IOPRIO_PRIO_LEVEL() in commit eca2040972
("scsi: block: ioprio: Clean up interface definition") results in an
iopriority level to always be masked using the macro IOPRIO_LEVEL_MASK, and
thus to the kernel always seeing an acceptable value for an I/O priority
level when checked in ioprio_check_cap().  Before this patch, this function
would return an error for some (but not all) invalid values for a level
valid range of [0..7].

Restore and improve the detection of invalid priority levels by introducing
the inline function ioprio_value() to check an ioprio class, level and hint
value before combining these fields into a single value to be used with
ioprio_set() or AIOs. If an invalid value for the class, level or hint of
an ioprio is detected, ioprio_value() returns an ioprio using the class
IOPRIO_CLASS_INVALID, indicating an invalid value and causing
ioprio_check_cap() to return -EINVAL.

Fixes: 6c91325722 ("scsi: block: Introduce ioprio hints")
Fixes: eca2040972 ("scsi: block: ioprio: Clean up interface definition")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230608095556.124001-1-dlemoal@kernel.org
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 		2023-06-16 12:04:30 -04:00
..
asm-generic open: return EINVAL for O_DIRECTORY | O_CREAT 2023-03-22 11:06:55 +01:00
drm Merge tag 'drm-msm-next-2023-04-10' of https://gitlab.freedesktop.org/drm/msm into drm-next 2023-04-11 12:21:50 +02:00
linux scsi: block: Improve ioprio value validity checks 2023-06-16 12:04:30 -04:00
misc habanalabs/uapi: move uapi file to drm 2023-01-26 10:56:23 +02:00
mtd
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rdma RDMA/efa: Add rdma write capability to device caps 2023-04-21 19:18:58 -03:00
scsi scsi: mpi3mr: Replace 1-element array with flex-array 2023-02-21 22:00:50 -05:00
sound sound updates for 6.4-rc1 2023-04-27 10:58:37 -07:00
video
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xen
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Kbuild
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